What do you mean by "eating Calipers" ....? I have certainly heard of cars "eating" rotors .... What are some of the other symptoms?
Locking up brakes on your car could mean something other than calipers. ABS system, have your checked it out? It makes me thing that possibly the ABS sensors are the problem ....
Have your replaced your flexible brake lines?
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)